21126026822 has 8 divisors (see below), whose sum is σ = 31694840400. Its totient is φ = 10561080024.

The previous prime is 21126026813. The next prime is 21126026843. The reversal of 21126026822 is 22862062112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952997 + ... + 974912.

It is an arithmetic number, because the mean of its divisors is an integer number (3961855050).

Almost surely, 2^21126026822 is an apocalyptic number.

21126026822 is a deficient number, since it is larger than the sum of its proper divisors (10568813578).

21126026822 is a wasteful number, since it uses less digits than its factorization.

21126026822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933390.

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 21126026822 its reverse (22862062112), we get a palindrome (43988088934).

The spelling of 21126026822 in words is "twenty-one billion, one hundred twenty-six million, twenty-six thousand, eight hundred twenty-two".